When a salt water solution is separated using distillation, water is evaporated out of the solution and salt is left behind. During distillation, salt is undergoing a _____ change and water is undergoing a _____ change.

There are three kinds of subatomic particles:

I: protons

II: neutrons

III: electrons.

Which particles reside in the nucleus?

Elements in the same group on the period table all have the same:

Which of the following examples represents a chemical change?

The atomic number of an element is ALWAYS the same as the:

Rows on the periodic table are called ______, and columns on the periodic table are called _________.

As you go from LEFT to RIGHT on the periodic table, elements typically change from:

Which of the following observations would support a hypothesis that an unknown substance is a compound and NOT an element?

The substance magnesium chloride is a(n) ________ compound with the chemical formula ______.

In a neutral carbon atom, the number of electrons is equal to:

$$C_6H_{12}O_{6\left(s\right)}+6\ O_{2\left(g\right)}\rightarrow\ 6\ CO_{2\left(g\right)}+\ 6\ H_2O_{\left(g\right)}$$

In this chemical reaction, the PRODUCTS can be described as:

$$\frac{13}{6}C$$

The isotope above, carbon-13, contains:

Which of the following bond types is Hydrogen able to form in a molecule?

$$NaCl\ \left(aq\right)\ +\ AgNO_3\left(aq\right)\rightarrow\ NaNO_3\left(aq\right)+AgCl\left(s\right)$$

The chemical reaction shown above is commonly referred to as a double-replacement reaction. Which of the following explains why this reaction is a double replacement?

Chemists measure atomic radius in Angstroms. Which of the following best describes atomic radius?

In a proper Lewis structures, each atom forms bonds in order to have the same electron configuration as:

$$Zn\left(s\right)\ +\ Cu\left(NO_3\right)_2\left(aq\right)\ \rightarrow\ Cu\left(s\right)\ +\ Zn\left(NO_3\right)_2$$

This reaction is an example of a _______ reaction, in which Zinc loses electrons and becomes oxidized.

Which of the following explains why Structure B is more stable than structure A?

In a combination reaction between a metal and a non-metal, the substance that loses electrons is OXIDIZED. The substance that gains electrons is REDUCED. In the reaction below, ______ is oxidized and ______ is reduced.

$$Mg\ +\ O_2\ \rightarrow\ MgO$$